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Left ventricular function in isolated rheumatic mitral stenosis in children.

P S Rao, S Mukhopadhyay, R Tandon

    Pediatric Cardiology
    |January 1, 1986
    PubMed
    Summary
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    Children with rheumatic mitral stenosis can experience left ventricular dysfunction. This study found reduced ejection fraction and impaired contractility in pediatric patients, even without active carditis.

    Area of Science:

    • Pediatric Cardiology
    • Cardiovascular Research
    • Rheumatic Heart Disease

    Background:

    • Rheumatic mitral stenosis is a significant cause of heart disease in children.
    • Left ventricular function in pediatric patients with mitral stenosis is not well understood.
    • Pulmonary arterial hypertension is a common complication.

    Purpose of the Study:

    • To investigate left ventricular function in children with pure rheumatic mitral stenosis.
    • To assess the prevalence and characteristics of left ventricular dysfunction in this population.
    • To explore potential correlations between ventricular dysfunction and disease severity.

    Main Methods:

    • Studied 18 pediatric patients (8-14 years) with pure rheumatic mitral stenosis.
    • Performed left ventricular angiograms to assess volumes and ejection fraction.

    Related Experiment Videos

  • Analyzed segmental contraction patterns in patients with reduced ejection fraction.

    • Main Results:

    • Moderate to severe pulmonary arterial hypertension was present in most patients.
    • Mean left ventricular ejection fraction was lower than normal, with five patients showing reduced function.
    • Patients with low ejection fraction exhibited global or segmental hypokinesia, sometimes associated with severe pulmonary hypertension.

    Conclusions:

    • Children with pure rheumatic mitral stenosis may exhibit left ventricular dysfunction.
    • Left ventricular dysfunction can occur even in the absence of active carditis.
    • Findings highlight the importance of assessing ventricular function in pediatric mitral stenosis.